摘要
为探讨早栽早收对冀东地区鲜食型甘薯产量和经济效益的影响,以普遍推广的鲜食型甘薯烟薯25为材料,设早栽(4月20日),适期移栽(4月30日)和晚栽(5月10日)等3个移栽期,8月18日,8月28日,9月7日,9月27日共4个收获时期,研究早栽早收对鲜食型甘薯物质积累、产量形成及经济效益的影响。结果表明,移栽期影响甘薯各生育时期所处的雨热条件,覆膜条件下,早栽鲜食型甘薯块根形成期易处于温度适宜期,形成的单株薯块数较多,物质积累量较高。早栽甘薯物质积累在移栽后第68天进入快增期,块根膨大速率在移栽后第70天达到第一高峰期,在移栽后第110天达到第二高峰期。早栽鲜食型甘薯的产量最高,其收获期提前至8月18日可以获得所有处理最高经济效益。因此,冀东地区鲜食型甘薯可在覆膜条件下提前至4月20日移栽,8月中旬收获,以获取较高的经济效益。
The effect of early planting and early harvesting on the matter accumulation,yield and economic benefits of edible sweet potatoes in eastern Hebei province was studied,Yanshu 25,a popular edible sweet potato variety,was used as the subject.The field experiment was conducted with three transplanting dates(April 20,April 30,May 10)and four harvesting dates(August 18,August 28,September 7,September 27).The results showed that under plastic film mulching condition,the temperature was more appropriate in the root tuber formation stage of the early transplanting treatment,which brings about more root tubers and much matter accumulation.In early transplanting treatment,the matter accumulation reached the rapid increase stage on the 68th day after transplanting,the bulking rate of root tuber reached the first peak volume on the 70th day after transplanting,and the second peak volume appeared on the 110th day after transplanting.In early transplanting treatment,the fresh root tuber yield was the highest,and the highest economic benefit was obtained when harvesting date advanced to August 18 in all treatments.Therefore,edible sweet potatoes in eastern Hebei province can be transplanted as early as on April 20 and harvested in the middle of August under the condition of film mulching so as to get higher economic benefits.
作者
武晋涛
杨德华
裴世娟
王艳敏
马洪静
韩金玲
WU Jintao;YANG Dehua;PEI Shijuan;WANG Yanming;MA Hongjing;HAN Jinling(College of Agronomy and Biotechnology,Hebei Normal University of Science and Technology,Qinhuangdao Hebei,066600;Hebei(Qinhuangdao)Sweet Potato Industry Technology Research Institute;Changli Bureau of Agriculture and Rural Affairs,China)
出处
《河北科技师范学院学报》
CAS
2022年第3期40-47,54,共9页
Journal of Hebei Normal University of Science & Technology
基金
秦皇岛市科学技术研究与发展计划项目(项目编号:201903B010)。
关键词
鲜食型甘薯
早栽早收
产量
经济效益
冀东地区
Edible sweet potato
early planting and early harvesting
yield
economic benefits
eastern Hebei province
